90 ford areostar
 

My 1990 ford areostar has red hot exhaust manifolds, anyone have an idea what might cause this?

I would guess the catalytic converter is plugged. You may have better luck posting this in the aerostar forum.

Here is a link for ya




https://www.ford-trucks.com/forums/f...?s=&forumid=33

I had the same thing happen to my 1992. It was the catalytic converter. hope that helps.